sxone:
Hi,
i'm using Zen-Cart v1.5.1 version, and when i install Ultimate SEO 2.200 i get this message:
"Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, [email protected] and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.
Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request."
This indicates your hosting provider's server did not like something and encountered an internal error. The usual causes are problems encountered when uploading files - or files skipped / missed during installation and merging (most common), mistakes / errors in the Zen Cart configuration files (common), an improperly configured "RewriteBase" in the .htaccess file (less common), the server not supporting one of the directives in the .htaccess file (uncommon), or an issue with the server iteslf (rare).
The best way to start debugging an "Internal Server Error" is to obtain the error log from the server. Most often this will be the webserver error log (for Apache). In some cases the hosting provider may have a log file also defined in "php.ini". You may need to contact the Hosting Provider to obtain the actual error log and messages. The link in my signature "Where are the HTTP 500 / Server Error Logs?" contains some additional information.
In addition to the "Server Error Logs" answers to the other questions in the posting tips (scroll up when posting to find the posting tips) would be useful. For example, the contents of the page shown by Zen Cart under "admin" -> "version"?